/Engine/Plugins/Experimental/PCG/Source/PCG/Public/PCGGraph.h
Creates an edge between two nodes/pins based on the labels. Returns true if the To node has removed other edges (happens with single pins)
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, Category=Graph) bool AddLabeledEdge ( [UPCGNode](API\Plugins\PCG\UPCGNode) * From, const [FName](API\Runtime\Core\UObject\FName) & InboundLabel, [UPCGNode](API\Plugins\PCG\UPCGNode) * To, const [FName](API\Runtime\Core\UObject\FName) & OutboundLabel )